TweetPhoto has now added the ability to sign in with Twitter OAuth, Facebook Connect, MySpace OAuth and Foursquare OAuth so that a user of any one of these social networks can use TweetPhoto as a stand alone photo sharing service. The site will also be rolling out LinkedIn support in the next few weeks. In addition to login capabilities across all four of these services, TweetPhoto users can also link these social networking accounts together. Once you link your Facebook, Twitter, MySpace , or Foursquare accounts on the site, your photos uploaded to TweetPhoto can be simultaneously broadcast to all of the networks. Third party applications that use TweetPhoto as the default photo uploader such as TweetDeck and Seesmic’s BlackBerry app, will also include this functionality.

TweetPhoto’s new, free iPhone app, called TweetPhoto Pro, is a suped-up version of its sister iPhone apps. The app allows users to upload photos, see their friends photos, the public photo stream, popular photos (usually celebrities or breaking news), and can link their social network accounts. The startup has also submitted similar apps for Android and Blackberry platforms.

In connection with the new social broadcast features, TweetPhoto is rolling out a new API to include over 35 new API calls. And as we wrote last year, TweetPhoto got into a bit of a pickle over its logo. That combined with Twitter’s trademark of the word “Tweet,” is resulting in TweetPhoto completely rebranding its service. The first step of this effort is a new logo, which we’ve attached above. A new name is forthcoming, says TweetPhoto, and its focus will be much more on the mobile side of things.

While TweetPhoto is still not getting the same amount of traffic as the leaders in the space, TwitPic, the site is edging out fellow competitor yFrog, according to January’s Compete numbers. But as TweetPhoto, which met with a little bit of scandal last fall, makes its offerings more social and interactive, the site could even give TwitPic a run for its money.

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OverviewFacebook is an online social networking service that allows its users to connect with friends and family as well as make new connections. It provides its users with the ability to create a profile, update information, add images, send friend requests, and accept requests from other users. Its features include status update, photo tagging and sharing, and more.
Facebook’s profile structure includes …

OverviewTwitter is a global social networking platform that allows its users to send and read 140-character messages known as “tweets”. It enables registered users to read and post their tweets through the web, short message service (SMS), and mobile applications.
As a global real-time communications platform, Twitter has more than 400 million monthly visitors and 255 million monthly active users around …

OverviewFoursquare is a technology company that uses location intelligence to build meaningful consumer experiences and inform business decisions. We have two mobile apps: Foursquare and Swarm, and a suite of enterprise and advertising tools.
For consumers, we believe the world is full of amazing experiences. We make two apps to help guide you to them: Foursquare and Swarm.
The Foursquare app helps you …

OverviewLinkedIn is a professional networking site that allows its members to create business connections, search for jobs, and find potential clients.
The site also enables its users to build and engage with their professional networks; access shared knowledge and insights; and find business opportunities. It offers LinkedIn mobile applications across various platforms and languages such as iOS, Android, …

OverviewMySpace is one of the world's largest social networks, with about 125 million users. Originally inspired by [Friendster](http://www.crunchbase.com/company/friendster), MySpace quickly grew to become the world's largest social network, before being overtaken by [Facebook](http://www.crunchbase.com/company/facebook). User pages are highly customizable and support integration with widgets such as [Slide](http://www.crunchbase.com/company/slide) …